chore(.github/workflows): add stale action (#4000)

Signed-off-by: Gaius <gaius.qi@gmail.com>

Author: gaius-qi

.github/workflows/stale.yml

@@ -0,0 +1,29 @@
+name: Close stale issues and PRs
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *"
+
+permissions:
+  issues: write
+  pull-requests: write
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@28ca1036281a5e5922ead5184a1bbf96e5fc984e # v9.0.0
+        id: stale
+        with:
+          delete-branch: true
+          days-before-close: 60
+          days-before-stale: 90
+          stale-issue-label: "stale"
+          exempt-issue-labels: bug,wip,on-hold
+          exempt-pr-labels: bug,wip,on-hold
+          exempt-all-milestones: true
+          stale-issue-message: 'This issue is stale because it has been open 90 days with no activity.'
+          stale-pr-message: 'This PR is stale because it has been open 90 days with no activity.'
+          close-issue-message: 'This issue was closed because it has been stalled for 60 days with no activity.'
+          close-pr-message: 'This PR was closed because it has been stalled for 60 days with no activity.'